壳聚糖-氟伐他汀新型制剂的制备研究_制药工程论文
发布时间:
2015-04-01
来源:
人大经济论坛
制药工程论文范文
目 录
中文摘要..........................................................I
英文摘要..........................................................II
目录..............................................................III
1. 绪论...........................................................1
1.1 引言......................................................1
1.2 研究现状..................................................1
1.3 立题依据..................................................5
2. 实验部分.......................................................6
2.1 实验仪器与试剂............................................6
2.2 实验的制备过程............................................7
2.3 载药量的测定..............................................9
2.4 纳米粒粒径的测定..........................................12
3. 偶联物CHS-F的检测..............................................13
3.1 紫外扫描..................................................13
3.2 傅立叶红外分析............................................15
3.3 差示量扫描热DSC...........................................17
3.4 高效分离..................................................18
4. 结果与讨论.....................................................19
4.1 氟伐他汀钠合成过程分析....................................19
4.2 偶联物的制备过程分析......................................20
4.3 CHS-F彻底水解的酸碱比较...................................21
4.4 纳米粒的高效分离测定分析..................................21
4.5 载药量的比较..............................................22
4.6 实验小结..................................................22
5. 总结与展望.....................................................23
5.1 实验总结..................................................23
5.2 展望......................................................23
致谢..............................................................24
参考文献..........................................................25
摘 要:氟伐他汀酯经氢氧化钠(1N)水解制备得到降血脂药物氟伐他汀钠。为对其进行剂型改造研究,我们采用两种方法制备壳聚糖-氟伐他汀的偶联物和纳米粒。偶联物通过UV、IR、DSC进行结构确认,得到以酰胺键相联的壳聚糖-氟伐他汀偶联物;纳米粒通过激光粒度纳米仪进行粒径测定。两种制备方法制备得到的壳聚糖-氟伐他汀通过高效液相来测定其含量,并计算出载药量,纳米粒的载药量达到43.67%,偶联物的载药量达到25.03%。
关键词:壳聚糖;氟伐他汀;偶联物;纳米粒
Abstract: Fluvastatin sodium,a hypolipidemic drug,was prepared by ester hydrolysis from fluvastatin ester with 1N sodium hydroxide. In order to enrich the dosage forms of chitosan-fluvastatin combination, we choosed two kind of methods to to prepare fluvastatin-chitosan conjugate and nanoparticles. Fluvastatin was chemically coupled to chitosan to form chitosan-fluvastatin conjugate, which was confirmed by UV、IR、DSC. The size of nanoparticles was determined by laser scattering instrument. The concentration of the two kinds of chitosan- fluvastatin were determined by HPLC, then calculated the drug-loading rate. After experiment, the drug-loading rate of nanoparticles was 43.67%, and conjugate was 25.03%.
Keywords:Chitosan; Fluvastatin; conjugate; nanoparticle